Keep an eye on Primecoin(XPM). Was apparently added to some chinese exchange yesterday and today the price went up by almost 150%. BUT, be aware that at its peak it was still 3 times higher than this.
It's a cool alt because it truly is unique. And it is still CPU only making it quite nice to solomine on your PC, works great to mine at the same time as your GPU mines something else.
I made quite alot of Bitcoins(yes i converted em, but can you blame me with the BTC prices?). A friend made more than 200btc mining this. And with the price rise of btc lately, I think its actually quite nice to mine it again.
Here is some of the most important things to know about it.
Wiki ->
http://en.wikipedia.org/wiki/PrimecoinBest (IMO) exchange ->
https://mcxnow.com/exchange/XPMOn reddit ->
http://www.reddit.com/r/primecoinRelease thread(No premine, had a fair launch) ->
https://bitcointalk.org/index.php?topic=251850.0Best miner(dont use the original, its not optimized AT ALL) ->
https://bitcointalk.org/index.php?topic=255782.0Best Pool(IMO) ->
http://www.peercointalk.org/index.php?topic=485.0Will glady answer questions about this

Feel free to donate if you found this useful!
XPM: AW9GNjP9nrVihTMcJbcyd4srhcpHydvsMm
BTC: 1JJdCf2rwgCi5y1C5rnS2WVUjudFksHLsn